that all the support being needed is now working its way out into the system. in europe, french authorities warn of a heat apocalypse as thousands are forced to flee wildfires. so does climate change now mean regular severe heatwaves? future warming is determined by future emissions. if we stop dumping carbon into the atmosphere at carbon into the atmosphere at carbon dioxide into the atmosphere the world will stop warming. good afternoon and welcome to bbc news. the uk s first ever red warning for extreme heat has come into effect meaning there s a danger to life and the threat of major travel disruption. it is also provisionally the hottest day in wales since records began. the red alert covers much of england from london and the south east up to york and manchester. it s already the hottest day of the year so far and parts of england could be hotter than the western sahara and the caribbean. tomorrow, temperatures could exceed a0 degrees in southern england, whic